Dave was trying to get his head around jazz.
The drummer poet was discussing beats and rhythms.
It was hard going what with it being late and his eyes not liking staring at a computer screen for too long which these days wasn't for very long at all.
He wished that he could remember the words that his friend Will used to describe the thrum-hum-sap that came from being engaged with a computer.
Dave could see the day coming when everyone would have i-pads implanted in their foreheads instead of brains.
But this thought wasn't helping him get his head around jazz.